A 4mm diamond measures 4mm in at least one measurement.
A concentric circle looks like a bullseye or a target. It is a big circle with littler circles inside of it with the same centerponit
Looks like a circle to me.
It looks like a circle
A circumference is the perimeter of a circle
show me what 4mm look like on a ruler. Compare 4mm to another image, like a bug or a dime, or a string etc.
You neglected to say whether the 4mm is the radius of the circle, or the diameter,or the circumference. Each possibility leads to a different area.
A circle with a diameter of 4 mm has an area of : 12.57 mm2
50.265 square mm
What is the size of a 4MM kidney stone? Comparable to a BB or a Pea? 0.157 inches to 3 decimal places, or practically 5/32 inch, so smaller than a pea.
You neglected to say whether the 4mm is the radius of the circle, or the diameter,or the circumference. Each possibility gives you a different area.
It's small (about 2-4mm long, 1mm thick) normally pale beige and fluted.
a circle
Pie (3.14159...) times (*) 2 times (*) radius === or This equation may be for the area but hopefully it's for circumference. Anyway, the answer to your question is 25.13274123... (Pie times 2 times 4mm).
a circle with a certain percent at a certain mesurement.
You could not tell because a circle is round.
From front side it will look like a simple circle